小学一二年级口算题题库.pdf

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1、6+5=55-50=30+3=26-6=8+3=24-4=7+70=2+80=12-7=30+2=50+50=20+30=98-40=66-6=80-30=60+10=70+30-40=43-3+20=100-50-10=40+2=18-9=3+42=19-6=7+27=38-8=12+6=45+60=90-20=48-8=82+3=8+30=4+24=30+8=50-20=15-9-3=9+7-8=14-7+8=10-5+5=2+5+9=70-20+9=90+7-60=10+2-3=88-8-80=13-9=16-9=15-9=17-9=12-9=18-9=11-9=14-9=17-9=16

2、-9=19-9=9+6=8+9=14-9+7=15-9-5=6+7-9=13-9+8=17-9=5+9=9+8=3+9=9+6=14-9=17-9=7+5=8+4=8+8=12-7=12-8=16-8=14-7=17-8=13-7=12-8=16-7=15-8=17-7=11-7=13-8=18-8=11-8=12-7=13-7=12-8=11-9=4+2=8-3=3+6=9-4=40+20=80-30=30+60=90-40=10+3=7+30=5+70=2+10=30+7=70+5=12-2=37-7=75-5=12-10=37-30=75-70=70+4=46-6=33-30=17-7=

3、58-50=9+60=20+5=50+1=30+5=30+6=70+3=21+70=46+20=30+14=21+7=46+2=3+14=41+7=30+28=46+2=46+20=3+55=53+5=46+3=6+62=19+70=4+32=50+49=63+6=30+28=40+12=45+4=33+40=56+30=3+34=38+20=20+38=3+56=20+78=25+30=25+30=25+3=31+23=54-30=68-40=93-20=39-20=77-40=67-30=68-20=48-3=59-30=69-40=75-3=75+3=26-4=85-70=46-6=73

4、-50=87-4=99-7=56-3=72-20=27-7=95-70=44-30=58-40=48-3=48-30=57-6=47-6=59-30=69-40=75-3=75+4=56-30=34-3=87-6=74-2=78-60=34-30=78-6=74+2=75-3=88-5=56-4=89-7=46-20=69-40=47-3=38-7=84-4=63-60=49-4=94-70=39-3=71-30=57-30=49-5=97-60=47-3=78-20=47-5=48-5=32-30=65-4=53-50=68-5=47-4=74-20=86-5=74-3=75-30=68-5

5、0=47-30=75-40=86-50=74-30=74-50=57-30=28-6=47-3=98-20=89-60=39-8=43-30=38-20=12+45=36+23=87+35=65+24=42+40=78+35=64+32=32+53=67-42=68-5=4+23=35+42=43+54=67-37=78-46=45+32=76-56=74-30=35-32=38-7=26+63=69-7=5+74=63-41=54-42=38-11=75+4=46+30=20+69=75-4=46-30=69-20=32+37=4+65=57-35=88-63=58+20=78-5=87-4

6、0=76-3=76-30=4+35=35+4=42+40=3+56=24+8=36+5=6+4=5+8=9+7=26+4=5+38=9+17=46+4=5+48=9+37=8+35=14+6=35+3=2+46=24+4=35+5=4+46=26+3=35+7=6+46=28+4=36+5=47+2=7+52=36+50=47+7=7+25=37+8=63+6=4+58=28+20=42+9=7+76=89+2=8+15=46+30=28+5=34+6=56+40=3+29=35+3=2+46=24+4=35+5=4+46=36+3=74+8=48+4=4+54=40+37=7+35=8+56

7、=78+9=56+3=34+2=73+5=27+2=56+8=34+7=73+9=27+6=8+29=9+46=67+7=7+36=5+69=37+50=5+57=8+46=6+46=8+33=9+28=20+53=20+37=15+28=46+9=52+9=47+6=39+4=86-40=39-6=94-40=88-7=63-50=73-40=65-5=71-50=45-20=89-40=76-50=45-2=89-4=76-5=54-30=68-40=77-40=67-30=68-30=26-4=85-70=46-6=73-50=87-3=99-7=56-3=72-20=27-7=95-7

8、0=44-30=58-40=48-3=48-30=57-6=47-6=58-30=75-3=75+3=34-3=87-6=74-2=78-60=34-30=78-6=74+2=74-20=75-3=88-5=56-4=89-7=46-20=69-40=38-7=68-5=47-3=75-20=86-5=74-3=75-30=68-50=47-30=75-40=86-50=74-30=75-50=84-4=63-60=49-4=94-70=39-3=71-30=57-30=49-5=97-60=47-3=78-20=47-5=48-5=32-20=65-4=53-50=57-30=29-6=47

9、-3=88-20=89-60=39-8=43-30=38-20=12+45=36+23=87+45=65+24=42+40=78+35=64+32=16-2X 7 =91+85-26=2X 2X 2=2X 9X 8=3X 8X 8=24-1-0=50+2X8=14+11-25=9X 5 X 5=90-81+2=8 5-8 3-1 =8X6+79=64-2-2=9 6-2X 4 =5 2-1X 5=4X244-4=19+6X6=5义6+82=1X3+63=77+66-49=5X704-10=254-5X9=204-5+37=63 16+16=4X 7 X 7=80+5X7=5130+5=9X40

10、+10=45+91+29=72-254-5=7X 5X 0=604-6+29=4 X 3-0=0X4+62=36+69-16=51+37-59=73+24+3=1 X 8-7=3X0+48=6X 4-1 9 =46+91+80=604-10+99=12+2 2=5X 4X 7=7 1-9-4 8 =9644+68=9 3-7 X 4=28+4+83=124-4-2=4X 4X 2=7X904-9=9 7-7-6 6 =604-6-7=8X274-9=81+9+1=104-1X8=304-10-1=76+57-79=37+1X5=90+9X7=324-24-2=104-1X7=95-57+44=

11、5 3-4X 1=4+4 X 8=34+4X 4=5X164-8=9 2-6X 2 =22+32+97=9X36+9=8+8-0=1684-34-7=4 X 6-1 1 =36+9+69=0+60-36=13+8X8=0X354-7=24-54-5=4X7+98=424-6-4=62-104-1=9 6-2X 3 =43+58-67=79-38+40=704-10X5=35+5+31=93-22+34=10-63 H-9=6 3-6 2-0 =204-5-3=47-3X 2 =115-9X 5=9 X 4-1 0 =60+724-8=8 X 4-2 2 =2 1-2X 3=ix o-o=13+

12、71+38=16+1+8=6 2-4 X 4=6X 6X 3=18-634-7=59+74-70=100-2X1=8X5+45=9 X 2-1 0 =5 1-1 9-0=8X0+49=3X 4X 9=7X0+31=8 9-7 6-1 1 =324-8X6=42+6X2=124-44-3=364-9X5=1444-64-4=9 X 9-6 1 =724-8-1=99-94-3=8 X 5-1 4=70-3+13=5 3-3 7-4=74+31-16=6 X 8+3=4 7-1 1-2 1 =75+5X3=6X4+61=40 4 5=432+8+9=7 4-8X 7 =804-10-4=904-9

13、X5=304-5+58=52+6X0=62+86+70=304-10+65=1084-34-4=50-14-1=1 5-1-7 =75+24+6=8X 2X 7=4 X 5-1 9 =28+30+94=2 3-0-1 8 =5+1 X 5=124-44-3=3X7+68=11+86-1=72 9 1=78-814-9=29+9X2=6+1 X 4=26+93-52=0 X 6-0=59-304-10=20-2X 5=8 7-7X 7 =22+35+5=98-47+0=62 32+4=484-8-0=8X3+89=56+71-23=57-13-42=7+0+94=38-7+69=12+4X2=3

14、8+80+8=28-2X8=79-73-4=136-7X7=14+5X7=98-39+47=113-5X3=72+8X6=66+14+79=66-9X4=64-2+20=28+0X2=9X 0-0=354-5-2=21+7X8=5X3+95=1X0X9=94-1+9=72-17-24=57+71-96=4+1X9=4+52+51=86-73+1=48+43-21=204-10+18=77-814-9=3X7+20=124-34-1=504-5-4=32+96 33=22-21+43=1X 6-4=42+4X6=9X9X6=3X5+33=1X94-9=1X304-6=61+97-8=80+15+

15、52=4+5X6=82-74+72=2704-64-5=84+42+6=102-4X6=8X9+72=244-8-1=56+51+18=92-37-41=210+7+3=49+25+81=68+1X9=2X 7-0=4X144-7=424-7-1=1924-64-8=65-3X9=37+154-3=19-1X5=36+0义5=73-104-10=18-124-2=29-1X2=164-2X0=16+4X3=91-37+58=2X9+9=100+10X1=214-74-1=128H-84-8=31+9X8=16+76-54=27+91-42=8 3-8-9 =89+93-26=5 8-6-8 =

16、20+214-7=12-8+59=89-16-5=69-56+39=61-41-18=72+6+4=30+69+53=4 7-1 6-2 2 =196+4+7=99+35+31=51+80+84=24+3X8=53+93-13=20+46+62=15-12+68=24-1X 8=7 9-4 6-2 7 =41-4X 7=8X4+41=3X1+67=126-5X 6=32+8X8=74-1+29=97+52 57=5 X 3-6=804-54-4=58+0X1=159-8X 9=43+78-76=5X 9X 5=804-24-8=50-104-5=7 4-3 8-3 2 =6X8+27=6-r3

17、 0=3X 8X 5=68-204-2=0X144-7=34-0X 6=4X 9X 4=48-64-3=1X 5X 8=6 1-2 0-3 6 =8X0+49=0X6+32=484-6-0=80+24-66=44-4-0=4X8+16=14-1-0=95-6X 7=244-8-2=404-10-2=13+16 24=904-104-9=118-7X 3=2 X 8-8=27+4X5=14+66-52=42+0X2=13+58+61=7 7-1 3-1 4 =9X244-4=6X8+75=71-304-10=90-94-9=5X324-8=48+7 4-1=9X 6-12=77-124-3=40

18、4-5-4=9 1-2 5-7 =87+51-54=3X 9X 9=66+60+6=3 9-2-1 1 =324-24-2=25+184-9=3X8+33=34+804-8=83+49+12=6X5+51=704-74-10=6 7-4-5 6 =58+204-4=274-34-3=60+93+42=1054-74-3=63 2X4=124-6-1=58-34-3=64-3+39=91+124-4=80 36+9=604-34-5=90+11-34=51-274-3=4X 5X 9=23+48+66=6X6+88=144-7+36=54+9X6=9X24-1=64+3X8=10+78+3=8

19、0-1-5 4=7 6-0-4 0 =4 5-1 1-2 8 =0X6+72=244-4-2=84-2X5=724-14-9=2X3+64=19+5X3=78+82-59=23+10+10=84+95+74=8 3-5 7-2 0 =74-7+8=1 8-1 1-6 =2+8X 8=86+6X5=644-8+0=40+10+17=46-544-6=29+49+7=604-3+5=13+50+48=78 80+8=82+6418=36+6=40-3+18=3 4-1-0=79-104-1=1X4+92=2X 9+3=184-6X7=2 X 2-0=74-14-7=21+564-8=24+4+3=

20、8 4-2-0=56+8X7=404-10+68=88-68+8=60-54+31=65 36+4=62-4X 2=60+33 16=47 25+44=36+10+65=4X 9+4=9 X 2-4=504-5X9=1X214-3=6+6+91=284-14-7=54+6+62=284-4-5=424-74-1=54+9X6=144+6+8=404-5-4=804-8-2=24 63=564-7-7=99+1X5=304-3X7=44-1X3=454-9-4=5 4-3 5-4 =76+27+9=29+4X 7=164-4X4=95+7X6=95+94-3=1X8+83=53+39 2=60+

21、6+23=35+0X1=9X 9-25=12+2X6=69-4X 0=79+6+23=5 X 8-6=94+5+1=3 6-8-1 7 =22+0X3=7 X 9-1=5+124-3=44+3 2-2 =184-2X3=1X2+29=80+0X6=78+28+4=33+19+42=49+7X7=13-124-6=58+6X3=137-8X 6=47+144-2=0X5+58=1 6-6-2 =9X 1X 1=61 50-7=8X274-9=59+8 2-0 =164-2X4=62+80-79=14+7X9=7 6-3 9-1 0=6 5-4 0-2 =8X74-1=484-8-3=35-4X

22、0=4X1+15=71+7X 7=5-364-9=8+8+13=60+71+65=9 9-8 +81=4 6-2 4-7 =97+19+88=3 9-3 2-3 =4X 5X 2=5 1-6-1 0=6 0-1 1-4 0 =79-9X 8=40+5+82=24-1X6=76+92-40=9X 8X 4=77+79+57=8+40+18=96-164-8=648 9+9=92-24+67=4X 6X 1=0X144-2=90+184-3=214-7-0=28+4X 4=75+7X2=53-17+46=96+31-97=2+81-62=97-0X 8=364-6-1=101-2X 5=7X 1X

23、 9=1X1+99=92+80-10=10-24-2=5 1-3 9-5 =14-1+52=87+8X1=84-8+16=2 8 7-2 =304-5+58=52+6X0=62+86+70=304-10+65=7+20+7=10+2+63=304-10+21=4 8-4 3-0 =18+35+94=604-10-0=10+40-9=10+2+60=22-3X 7=42+73+38=96-5X 8=12-3X 2=5X4+47=58-30+65=3 8-1 1-6 =1X804-8=404-4-3=4X 816=40+42-31=30+10+79=8 4-63+0=28+7X7=24-13+38

24、=84+16+5=7 X 5-9=10-144-2=7X 5X 8=0X1+71=35+0X6=109-40+4=2+95+79=92+7-9 7 =61-3X 6=14+5 1-4 =3X704-10=49+7+52=4X 0+50=84-8-0=9X8+61=54-6X 8=72+8X0=35+9X3=704-10X7=9X 1+0=244-44 97-89+33=72 8+3=3+3X 5=28+5X1=9X8+68=35+21+23=84+604-10=13+40+87=30+3+42=42-44-1=8 3-1 3-3 =4 6-3 +20=89+12+2=3 X 6-5=27-3X

25、 2=40 10 1=81-5X 2=69+12+46=3 X 4-9=78-20+63=30+6+26=22+71+26=9X 0X 7=69+69+74=120+3+8=65+7X3=1X 6X 6=57-33+45=644-8-0=6X 6X 0=40+2X3=23+82+92=76+214-3=4+8X 6=43+304-10=71-74-1=504-5+72=57+78+16=94+7X5=8+1+77=9112+34=78+8X 7=404-8-4=424-6-2=6 5-1 +25=2X 5X 3=64+66+3=1804-104-3=98+32+44=304-10X9=33+2

26、X4=8 4-8-0=87-42+75=80+50-1=8 9-1-3 1 =5X3+13=2X 5X 7=6+6X 0=51+69-94=9 3-9+46=70+2+3=7 3-3 8-3 1 =2X 2X 2=86 73+62=52+1X4=4 1-3 X 4=92+49+82=9 0-8 X 1=95+13+50=34+404-4=1X0+52=53+904-9=2X 8X 3=79+5X2=2X 9X 2=0X304-5=7 X 0-0=23+53+34=7X9+28=604-10X4=7 3-6 2-7 =4X 4-11=91+97-69=64+2=7X 0+34=61-20+57=

27、1X7+16=1X274-3=87-6X 1=96+59+16=16+8-1 =85-9X 9=7 X 4-7=67-53+6=98+25+32=5542+78=5X30+3=18-1X 5=41+2X4=8X2+52=5X634-9=1 X 1-0=9X 0X 8=4 X 2-0=804-84-1=0X 2X 9=54-5+34=66+6X7=63+91+20=2 1-3 +6=24+204-5=9X 1X 4=8X 2X 7=604-44-5=65+6+3=1204-54-6=0X 3X 0=704-10X9=5 4-4 6-2 =1804-104-3=98+32+44=304-10X9=

28、33+2X4=8 4-8-0=8742+75=80+50-1=8 9-1-3 1 =53+60-85=90+41+2=40-10+11=8+99+31=704-74-10=6 7-4-5 6 =58+204-4=27+3+3=60+93+42=1054-74-3=63-2X 4=124-6-1=58-34-3=6+3+39=91+124-4=80 36+9=70-3+13=5 3-3 7-4=74+31-16=6 X 8+3=4 7-1 1-2 1 =75+5X3=6X4+61=404-4-5=432+8+9=7 4-8X 7 =80+104=904-9X5=23+82+92=76+214-3

29、=4+8 X 6=43+304-10=58-404-10=4 X 1-3=64-6+77=94-9+98=6 0-1 1-4 0 =7 9-9X 8 =40+5+82=24-1X6=76+92 40=9X 8 X 4=77+79+57=8+40+18=96-164-8=648+9+9=92-24+67=4 X 6X 1=0X144-2=90+184-3=21+7-0=28+4X 4=75+7X2=53-17+46=96+31-97=2+81-62=4 X 2-0=804-84-1=0X 2X 9=5+5+34=66+6X7=63+91+20=21 3+6=24+20+5=9X 1 X 4=8X

30、 2X 7=604-44-5=65+6+3=1204-54-6=0X 3X 0=704-10X9=5 4-4 6-2 =1804-104-3=98+32+44=30+10X9=33+2X 4=8 4-8-0=87-42+75=80+50-1=8 9-1-3 1 =24 44=97-89+33=72 8+3=34-3X5=16-2X 7 =91+85-26=2X 2X 2=2X 9X 8=3X 8X 8=24-1-0=50+2X8=14+11-25=9X 5X 5=90-81+2=8 5-8 3-1 =8X6+79=64-2-2=96-2X 4=5 2-1X 5=4X244-4=19+6X6=5

31、X6+82=1X3+63=77+6649=5X704-10=25+5X9=204-5+37=63-16+16=4X 7X 7=80+5X7=51-30+5=9X40+10=45+91+29=72-254-5=7X 5X 0=60+6+29=4 X 3-0=0X4+62=36+69-16=51+37 59=73+24+3=1 X 8-7=3X0+48=6X 4-19=60 3+5=13+50+48=7 8-8 0 8 =82+64-18=3-6+6=4 0-3 +18=3 4-1-0=79-104-1=46+91+80=604-10+99=124-2-2=5X 4X 7=7 1-9-4 8 =9

32、644+68=93 7X 4=28+4+83=12 42=4X 4X 2=7X904-9=9 7-7-6 6 =604-6-7=8X274-9=81+9+1=10+1X8=304-10-1=76+57-79=37+1X5=90+9X7=32+2+2=104-1X7=95 57+44=53-4X 1=4+4X 8=34+4X 4=5X164-8=92-6X 2=22+32+97=9X36+9=84-8-0=1684-34-7=4X 6-11=364-9+69=0+60-36=13+8X8=0X354-7=24-54-5=4X7+98=424-6-4=62-104-1=96-2X 3=43+58-

33、67=79-38+40=424-6X2=124-44-3=364-9X5=1444-64-4=9 X 9-6 1=724-8-1=99-94-3=8 X 5-1 4=70-3+13=5 3-3 7-4 =74+31-16=6义8+3=4 7-1 1-2 1 =75+5X3=6X4+61=404-4-5=432+8+9=74-8X 7=804-10-4=904-9X5=30+5+58=52+6义0=62+86+70=304-10+65=108+3+4=50-14-1=1 5-1-7=75+24+6=8X 2X 7=4X 5-19=28+30+94=2 3-0-1 8 =98-39+47=124-

34、34-1=49+25+81=27+91-42=113-5X 3=504-5-4=68+1X9=8 3-8-9 =724-8X6=32+96 33=2 X 7-0=89+93 26=66+14+79=22-21+43=4X14+7=5 8-6-8 =66-9X 4=1X 64=424-7-1=20+214-7=64-2+20=42+4X6=192 8=12-8+59=28+0X2=9X 9X 6=65-3X 9=8 9-1 6-5 =9X 00=3X5+33=37+154-3=69-56+39=354-5-2=1X 9+9=19-1X 5=6 1-4 1-1 8 =21+7X8=1X304-6=

35、36+0X5=724-64-4=30+69+53=4 7-1 6-2 2 =1964-44-7=99+35+31=51+80+84=24+3X8=53+93-13=20+46+62=15-12+68=24-1X 8=7 9-4 6-2 7 =41-4X 7=8X4+41=3X1+67=126-5X 6=32+8X8=74-1+29=97+52-57=5 X 3-6=804-54-4=58+0X1=159-8X 9=43+78-76=5X 9X 5=80 2+8=50-104-5=7 4-3 8-3 2 =6X8+27=6 3-0=3X 8X 5=I 58-204-2=0X144-7=34-0X

36、 6=4X 9X 4=48 6+3=1X 5X 8=7 6-0-4 0 =4 5-1 1-2 8 =0X6+72=2 4 4-2 =84-2X5=72+1+9=2X3+64=19+5X3=78+82 59=23+104-10=84+95+74=8 3-5 7-2 0 =35-4X 0=4X1+15=71+7X7=5-364-9=84-8+13=60+71+65=99-8 +81=4 6-2 4-7 =97+19+88=3 9-3 2-3 =4X 5X 2=5 1-6-1 0=6 0-1 1-4 0 =79-9X 8=404-5+82=24-1X6=76+92-40=9X 8X 4=77+79+

37、57=8+40+18=74-7+8=1 8-1 1-6 =2+8X 8=86+6X5=64+8+0=404-10+17=4654+6=29+49+7=4X0+50=84-8-0=9X8+61=54-6X 8=72+8X0=35+9X3=704-10X7=9X 1+0=244-4-4=97-89+33=724-84-3=3+3X 5=28+5X1=9X8+68=35+21+23=84+604-10=104-5=104-2=124-6=124-2=354-7=84-2=84-4=204-4=204-5=40+8=184-3=184-6=304-6=304-5=254-5=44-4=164-4=8+

38、4=154-5=28+4=154-3=364-6=244-6=244-4=4X8+23=54+9X8=20+4X7=81+9+36=67-24=72+9+2=3X64-2=4 X 6+8=28+4X3=54+27=46+24=23+58=43+29=68+31=48-26=74-15=85-23=8 9-4 6=59+34+12=56-32+25=50 19+23=82 22+17=7 6-21-2 5 =35+13-16=8 8-3 7-2 4=98-32+15=()X 2=44X()=12（）五二十五3 X()=6二（）十二2X()=85X()=15二（）一十()X4=20三（）十二（）三

39、得九四（）十六()+8=8()+9=7()+6=9644-()=836+()=672+()=925+()=5284-()=7184-3=27+9=64+8=354-7=124-6=634-7=404-5=204-4=18+6=424-6=304-5=30H-6=104-5=164-2=84-2=154-3=154-5=36+6=24+4=244-6=5X7+18=544-6X7=27+9X 8=81+9+47=72-9=2X94-3=3X44-6=284-7X5=56-18=45+26=47-19=82-14=4 5-1 6=54+29=47+35=28+38=47+25=67+19=6 8-

40、2 4-1 8 =58-26+18=7 4-1 5-1 8=73-23+16=7346+20=59+3 4-1 5=5 6-2 2-1 9=80-29+16=5 5-2 6-1 3 =57-11+15=42+19-15=34+18-26=()X 8=645X()=35（）五一十五7X()=56四（）二十四4X()=365X()=15六（）四十二()X 6=30三（）二十四（）四得八四（）二十八()+6=9()+4=4()+7=8814-()=9544-6 X 70454-5X 8 63+7 X 4 0 72+8 X3284-4X7O814-9X3634-7=424-6=544-9=354-5=

41、18+3=63+9=404-8=244-4=184-6=424-7=304-6=204-5=124-2=14+2=284-4=364-9=484-8=54+6=81+9=724-8=6X6+25=724-8X4=45+9X8=72+9+47=814-94-3=4 X 9+6=4 X 4+8=28+4X 7=73-25=39+27=8 1-2 4=43-15=68 29=67+14=47+53=26+46=59+25=48+19=7 6-2 4-1 5 =44-26+37=5 2-1 3-2 8 =64-29+16=53-4 6+2 8 =49+38-15=8 4-2 5-3 4=80 34+1

42、7=5 8-2 9-1 3 =67-19+15=53+19-15=25+18-28=()X9=724X()=36（）七四十二8X()=64四（）二十四7X()=493X()=24七（）六十三()X 8=40三（）十八（）五二十五四（）三十二()+7=7()+8=5()+6=9364-()=628+()=747+17 0 652800160+801800-500O220055+170 82 480-190 0 270 530-1400 290 250+5500 700644-8+1503X 7 7 2 4-8 X 7 0 8 X 9-1 5 7X8+1 9 0 8 X 9-1 848+6=21+

43、3=49+7=164-4=244-4=564-7=16+2=404-8=54-?6=35+7=184-9=424-7=164-8=24+3=564-8=5X6+28=36+6X8=454-5X9=244-8X9=724-84-3=7X8+38=4X9+25=284-4X8=4X9+55=54+6X7=7 X 9-2 4=684-8X4=74-25=47+23=37+49=7 6-4 7=5 4-2 5=29+38=36+37=57 39=38+44=7 4-2 7=64-38=49+36=77-28=8 7-4 9：=52+39=78-17+4 5=36+4 8-1 7=59 2418=88-

44、39+43=6 7-1 8-3 5 =64-29+38=59+4 2-2 3 =46+1 7-2 4=49+()=756+()=74X()=32五（）四十五()X 6=30七（）五十六（）八四十八七（）四十九()+6=7()+5=7 ()+3=728+()=7164-()=8六（）四十二8X()=724X()=28八（）七十二7 X 9-2 5 0 3 9454-9X 806X 87 X 8-25 0 5 X642+7=564-8=324-8=204-4=324-4=27+9=63+7=40+5=244-6=25+5=18+6=424-6=304-6=724-8=40+8=6X6+45=63+

45、7X4=544-9X8=724-9X6=54464-3=7X9+15=4X7+18=28+7X9=5X9+37=54+6X7=8X8+28=72+8X8=44-18=57+45=87-29=74-47=34-25=430+80=520+140=530+120=230+400=360-70=160-80=230+150=360-130=270-140=150-60=74-48+22=53+2 6-1 5=4 4-2 5-1 8=65-38+27=5 6-1 9-1 7 =83-47+23=67+3 9-4 3=52+19 36=七（）六十三5X()=358X()=72七（）四十九()X8=48五

46、（）四十五（）八二十四六（）四十八()+3=6()+9=2 ()+4=8 63+()7 644-()=856+8X7050724-8X606X7+12 684-8X706X7+1481+9=484-6=564-7=304-6=274-3=494-7=634-9=404-8=244-4=644-8=18+3=42+7=304-5=25+5=564-7=4X6+27=64+8X 4=45+5X 6=724-8+47=54+9+3=4X94-6=4 X 4+8=284-4X5=54-25=47+27=8 1-2 4=53-17=73-15=61-47+22=55+26 15=74-25 18=60-

47、32+17=7 6-2 9-1 5 =43 26+12=57+39-43=45+18-36=六（）四十八 8 X（）=64 4 X（）=36 七（）五 十 六（）X8=48()X9=45五（）三十五（）五二十五七（）六十三()+8=8()+6=6()4-7=7 284-(36+9 X 3=4X4+8=64+8X6=56+19 0 37+39 48+27 08549+7 X 6 0 5 X 6+1 3 724-9X607X77 X 6-25 0 5 X 7-18 35+7 X 804 X 6+17244-6=18+3=634-7=42+7=16+8=404-5=184-6=42+6=164-4=

48、4X6+18=54+6 X 4=45+9X8=64+8+4=7X9+15=4X7+18=5X9+37=54+9 X 7=7乂8 28=)=4 274-()=3364-4X5=4400750-24040 4-8X70457 X 6-2 5 0 5 X 7-1 820-?4=324-4=24+6=354-5=4+4=564-8=724-8X7=284-7X9=324-8X4=88-19=44+18=72-18=82-47+25=63-15-36=三()二十七()X6=36()+6=9 (三()二十四45+48=77+29=82 47=73 25=37+54=58-29=29+46=44-27=48

49、+16=37-18=82-19=55+37=16+38-17=69-23-18=68 39+42=77-49+36=57+43-23=42+18-26=2 X(尸 18 4X()=36 五()四十七()四十五()八六十四 七()五十六)4-5=5()+3=8 214-()=7 184-()=62X()=14 4X()=28 五()三十7 X 9-2 5 0 6 X 7-1 8 454-9X806X8+17 7 X 8-2 5 0 7 X 8-2 7724-8=25+5=634-7=204-5324-8=424-6=16+2=404-8=12 4=354-7=213=424-7=284-7=48

50、4-8564-7=5X7+18=544-9X8=184-9X7=72+9X8=63 7+3=6X9+27=4X9+18=494-7X9=3X9+35=54+6X7=7X 8-37=64+8X5=62-43=47+26=56+28=85-57=71-28=44+18=37+54=52 28=29+46=44-27=72-17=48+16=4 2-1 6=82-45=55+37=72-44+25=16+38-17=69-24 28=64-35+28=6 2-15-3 3 =58-49+37=56+48-25=52+28-26=四（）二十四8X()=724X()=36五（）四十五()X7=42七（）